Door lock



v 1,559,228 w. c. DEVEREAUX DOOR LOCK oat. 27,1925

Filed Dec. 26, 1923 I N VEN TOR. 77 525 ca 772 CJfl erm (IX,

ATTORNEY? Patented Oct. 27, 1925.

(UNITED "STATES wILLrur c. nnvnamux, or nn'rnon', MICHIGAN.

noon Locx.

A'pplication fled December 26, 1923. ierialllo. 882,782.

i To all who'v rtt't may come-mi vented certain new and use ul Improve-'Be itknown that I,'.WILLIAM C. Dnvnj REAUX, a citizen of the UnitedStates of America, residing at Detroit, in the county of Wayne and Stateof Mic an, have 1n ments in DoorLocks, of which the following is aspecification, referencepbeing had therein to the accompanying drawings.1

This invention relates to looks and latches and refers more particularlyto those designed for use upon the doors ofvehicl'e bodies. n

An object of the invention istoprovide a simple and reliable latch thatmay be locked from the inside of a door upon which it is mounted so thatit cannot be unlocked by.

means of the door handle upon the outside ofthedoor.-"

Another object is. to provide a, single 1 member for actuating both thelatch mecha-- spaces 19 which extend throng nism and the lock mechanism.

Another object is to provide a; connection between the actuating memberand the lockappended claims.

ing mechanism whereby the lock mechanism will be rendered inoperativewhen the latchv mechanism is operated from the inside of.

thedoor. Y

With'the above and'other objects in view, the invention consists ofcertain novel features of construction, combination and arran ement ofparts as will be more fully descri ed and particularly pointed out inthe In the accompanying drawing Figure 1 is a fragmentary rear elevationof a door latch e bodymg m invention with the cover plat shown in ottedlines;

Figures 2, 3, and! 4 are cross sections respectively on the lines 2-2,3-3 and 4-4 of Figure 1.

Referringnow to the drawing in which like characters of referencedeslgnate corresponding parts throughout the several views, the numeral1 designates a case plate which is secured to the inner side of a' ve-'hicle door 2 and which is provided at one edge w th a laterallyextending flange 3 that is secured to the outer edge of the door.

Slidably mounted on the case plate is a bolt 4 having a relatively flatshank '5 extending between a pair-of parallel struck-out ears 6 andhaving an enlarged head 7 extending through the flange 3for engagementwith a keeper 8 u on an upright member9 of the vehicle ha y.

, without movin vide a rotatable hub 22 that is journale in with apolygonal openin 25 that receives The bolt 4 is normally retainedinextended position by means of a helicalspring 10 having one endthereof rigidly secured between parallel lugs 11 struck out from thecase late 1 and having an arm portion 12.

abutting the forward end of alongitudiis pivoted at its lower end to thecase plate 1 and that extends upwardly through the slot13 and engages anupstanding lug 15 on the upper edge of the bolt. A cover plate 16 1spreferably arranged parallel to the case plate and is provided withforwardl pro e ct1ng tongues 17 that extend through openlngs in thelateral flange 3 and that are preferably riveted thereover. This coverplate is also secured to the case plate by screws 18 that threadedlyengalgle tubular the case plate 1 and areriveted thereto. The coverplate 16 is provided with'an elongated openended slot 20 that extendslongitudinally thereof and that registers with the bolt, the shank ofthe bolt being preferably cut away at its inner end as shown at21 so asto extend beyond the inner end portion of the cover plate.

In order that the bolt may be retracted the lever .14 by a personoutside the vehlcle body, I preferably rothe case plate 1 and that hasan upstandin actuating arm 23 engageable with a curve arm. 24 extendingupwardly from the shank 5'of the bolt. The hub22 is also provided the oratin shank 26 o a suitable handle 27 us, w en the arm 23 is rocked bythe handle 27 to retract the bolt, the lug 15 on the bolt will be disenaged from the lever 14,-. Likewise, when t elever 14 is moved rearwardlyto retract the bolt the arm'24 will be moved away from the actuatingarm23 so that the handle 27 will remain in normal position.

In order that the bolt may be locked in extended positionv when the dooris closed bya'person on the inside of the bod sotha't.

handle 27 wi be renthe outside operating f bl d pre era y 6 deredinoperative,

trigger 30 that is pivoted at its nner end .upon the caseplate 1 andthat isprovided at its outer end with a recess 81 for miving a lug .32projecting downwardly from the hub 22. Thus, when the trigger is raised,as shown by the full lines in Figure 1, the forward flat face 33 of thelug 32 will engage the flat forward end of the recess 31 so that the hub22 will be positively held against rotation in a counter clockwisedirection. Inasmuch as the upstanding arm 23 of the hub is normally inengagement with the flan e 3 of the case plate the hub 22 will also beeld against rotation in a clockwise direction.

In order that the lever 14 may be used to actuate the trigger 30, Ipreferably locate the pivot 35 for the trigger in rear of the pivot 36for the lever and provide an extenent I desire to have it understoodthat sion 37 that projects from the lever at a point below the plvot 36and that is adapted to enga e a curved extension38 that projects upwardy fromthe trigger 30 preferably at a point in the rear of the pivot 35.Thus, when the lever 14 is moved forwardly to lock the bolt theextension 37 will engage the extension 38 and will cause the forwardend' of the trigger 30 to be swung forwardly sb that the recess 31 willreceive thelug 32. For normally retaining the lever 14 in neutralposition, I preferably provide a spring 39 that is coiled about one of.the .spacers 19'. One end of the spring 39 abuts the forward edge of thelever 14, while the other end is preferably held by a bent over lug 40on the case plate 1.

The lever 14 is also used to release the bolt and for this purpose, Ipreferably provide an upstanding lug 41 on the upper edge of the trigger30 in advance of the pivot 35 so that w en the lever 14 is movedrearwardly the extension 37 will engage the projection 41 and will causethe forward end of the trigger to be swung downwardly'so that the lug 32will be d'men aged from the recess 31'; Thus, when the g 14 ma be movedrearwar'dly initially to release t e trigger to unlock the bolt and thenmay be moved further in a rearward direction to retract the bolt andrelease the door while maintaining the locking mechanism mgperatlve. t

. hile it is believed that from the foregoing description, the natureand advantages of the inventionwill be readily 'ap ardo not limit'myselfto what is hereinwshown and described and that such changes ma beresorted to when desired as fall wit in the I scap tilof what isclaimed.

at I claim as my invention .is 1. In a lock, the combination with a caseplate and a movable bolt on the case plate,

of a rotatable. member on the case plate adapted to actuate the bolt, atri er on the case plate for holding said rotata e ember againstmovement, an extension on t e trig ger, a projection on the trigger, anda lever olt is locked the lever.

,ing the retracting means inoperative having spaced projections, andmeans operable from the inside of the door for retracting the bolt, saidinside retracting means being movable in opposite directions toalternately engage the projections of the second means for moving thelatter to operative and inoperative position.

3. In a latch for doors and the like, the combination with a springpressed bolt, and means operable from the outside of the door forretracting the bolt, of a locking member engageable with a portion ofthe outside operating means for rendering the same inoperatlve, andmeans operable upon the inside of the door of retracting the bolt,

said inside operating means having an extension alternately en ageablewith different portions of the loc ing member to'actuate the same, saidinside operating means being movable 1n one direction to actuatethelocking member into locking engagement with the outside operatingmeans, and be ing movable in the o posite direction to release thelocking mem r and subsequently retract the bolt.

4. In a lock for doors and the like, the combination with a springpressed bolt, and meansupon the inside of the door for retracting thebolt, of a hub operable from the outside of the door having an arm forretracting the bolt, a projection on said hub, and a member adapted tobe moved by the inside retracting means into and out of engagement withsaid projection for alternately locking and releasing said arm.

5'. In a lock for doors and the like, the combination with a springpressed bolt, and means upon the inside of'the door for retracting thebolt, of a hub operable from the outsideof the door having an arm forretracting the bolt, a projectionon said hub, and a member pivoted belowthe inside operating means adapted to be engaged directly by a portionof the inside operating means to be alternately moved into and out of enagement with the projection on the hub or alternately locking andreleasing the latter.

6. In a lock combination with a spring pressed bolt, of

for retracting the bolt, a hub having an arm operable from the outsideof the door fon retracting the bolt, a projection on the hub, a lockingmember adapted to be moved alternately. into and out of lockingengagefor doors and the like, the

a lever operable from the inside of the door 1 ment with the projection,and a projection on the lever alternately engageable with difl'erentportions of said "member for moving the same into and out of lockingengagement with the first projection.

7. In a latch for doors and the like, the combination with a springpressed bolt, and means operable from the outside of the door forretracting the bolt, of a locking member engageable with a portion ofthe outside operating means for rendering the same inoperative, andpivoted means operable upon the inside of the door for retracting thebolt, said inside operating means having an extension beyond the pivotfor actuating the locking member, said inside operating means beingmovable in one direction to actuate the locking member into lockingengagement with the outside operating means and being movable in theopposite direction to release the locking member and subsequentlyretract the bolt.

8. In a lock for doors and the like, the combination with a normallyprojected bolt, of a hub operable from the outside of the .door havingan arm for retracting the bolt,

a projection on the hub, a member engageable with the projection forrendering the arm inoperative, and a pivoted member op-L erable from theinside of the door for retracting the bolt having a projection beyondthe pivot for actuatingthe member aforesaid,

9. In a lock for doors and the like, the combination with a normallyprojected bolt,

of a hub operable from the outside of the door having an arm forretracting the bolt, a projcction on the hub, a pivoted memberengageable with the projection for rendering the arm inoperative, apivoted lever operable from the inside of the door for retracting thebolt having a projection adjacent to its pivot for actuating the memberaforesaid.

10. In a lock for doors and the like, the combination with anormallyprojected bolt, of a hub operable from the outside of the door having anarm for retracting the bolt, a projection on the hub, a pivoted memberengageable with the projection, said member'having spaced projections,and a pivoted lever operable from the inside of the door having anextension beyond its pivot alternately engageable with said projectionsfor moving said member to operative and inoperative positions.

11. In a lock for doors and the like,-the combination with a case plate,and a normally projected bolt carried thereby, of a hub operable fromthe outside of the door having an arm for retracting the bolt, a

projection on the hub, a member operable from the inside of the door forretracting the bolt, a member pivoted on the case plate below the boltadapted to engage the projection on the hub for rendering the 'arminoperative, and a projection on the -last retracting member foractuating said pivot member.

12. In a lock for doors and'the like, the

' combination with a normally projected bolt, .of'a hub operable fromthe outside of the door having an arm for retracting the bolt, aprojection on the hub, a member operable from the inside of the door forretracting the bolt, and a member located'below the bolt adapted to bemoved by the last retracting member into and out of engagement with theprojection of the hub for alternatel holding and releasing said arm. Intestimony whereof I afl ix my signature.

WILLIAM G. DEVEREAUX.

